Subscription Form Without Captcha Fields

Question

What happens if a subscription form does not include Captcha fields when the option is enabled?

Answer

The Captcha option requires Captcha fields to be part of any subscription form. If a realm has this option enabled, any subscription forms must include the Captcha fields to function. A subscription form without those fields will always result in an error message indicating that the text entered did not match the image. (Captcha image)